|-9-x2| = 13
+) -9-x2 = 13
=> x2 = -9-13
=> x2 = -22 (vô lí, loại)
+) -9-x2 = -13
=> x2 = -9 - (-13)
=> x2 = 4
=> x2 = 22 = (-2)2
=> x = 2 hoặc x = -2
Vậy x thuộc {-2; 2}.
Tap hop cac gia tri nguyen x thoa man (x^2+4x+13):(x+4) co so phan tu la
tap hop cac gia tri nguyen cua x thoa man (x^2+4x+13) chia het cho (x+4) co so phan tu la ..............
tap hop cac gia tri nguyen cua x thoa man (x mũ 2 +4x+13) chia het cho (x+4) co so phan tu la ??????????????????????????????????
So cac gia tri nguyen cua x thoa man |x.(x^2 - 3)| = x la
Nhung so nao trong cac so:-4;-3;-2;-1;0;1;2;3;4 la gia tri cua so nguyen x thoa man :x.(4+x)=-3
so cac gia tri nguyen cua x thoa man -5<x<3 la ...
Cap so nguyen duong ( x,y ) thoa man |(x2 + 2).(y + 1)| = 9 la (x,y)=.....
(Nhap cac gia tri theo thu tu , cach nhau boi dau;)
nhung so nao trong cac so -4,-3,-2,-1,0,1,2,3,4 la gia tri cua so nguyen x thoa man dang thuc:x . (4+x) =-3?
cho x ; y la cac so nguyen to sao cho gia tri tuyet doi cua x cong gia tri tuyet doi cua y bang 5 so cap so nguyen (x;y) thoa man la
